C001

Attentional Stability

B01 Attention & Processing
Core LayerMML-1

Version v1.3.2

Definition

A baseline capacity to sustain focus on a chosen task over time without involuntary capture by irrelevant stimuli, either external (noise, light, movement) or internal (intrusive thoughts, impulses, emotions), while preserving task context (i.e., not repeatedly losing track of what one is doing and why).

Poles

Each HES element is a spectrum, not a category: the Low and High poles describe how it presents at its two extremes, while the Reference marks the typical, everyday middle. The poles map variation across the range — neither end is inherently better or worse.

Low Pole

Distractibility: focus fragments quickly even on simple tasks. Minor irritants capture attention, and returning to the task requires effort and reconstruction of context.

High Pole

Sustained focus can be maintained for extended periods. Distractors may be noticed but rarely capture attention. If a brief disruption occurs, return is rapid with minimal loss of context.

Reference

Generally stable focus under ordinary conditions, with occasional lapses. Structure, breaks, and environmental adjustments help. Sleep loss, stress, and sensory overload noticeably increase lapses.

Measure

Duration—the length of continuous, functionally sustained task focus until a “break” (loss of functional engagement) as defined by a chosen protocol.

Measuring Methods

• Sustained attention tasks (e.g., SART, CPT) with recording of lapses.
• “One axis, one stopwatch” protocol: time to first distraction based on behavioral criteria.
• Optional auxiliary recordings: cause of break (external vs. internal capture), frequency of micro-lapses, time to return.

Empirical Anchor

Sustained attention / vigilance (Parasuraman, 1979); SART / CPT paradigms (Robertson et al., 1997); attentional control theory (Eysenck et al., 2007).

Notes

• Risks at MAX: hyperfocus can reduce time awareness and situational monitoring, narrow attention.
• Risks at MIN: frequent lapses, loss of intention, dependence on external reminders.
• Differs from C002Attention Switching Speed (sustaining vs. switching).
• Differs from C003Working Memory Capacity (duration of focus vs. holding capacity).

Citation

APA

Human Elements System. (2026). Attentional Stability (HES Passport C001, v1.3.2). hestable.com. https://hestable.com/passport/C001

BibTeX

@misc{hes_C001, author = {{Human Elements System}}, title = {{Attentional Stability}}, year = {2026}, note = {HES Passport C001, v1.3.2}, howpublished = {\url{https://hestable.com/passport/C001}} }